Improper locking in Linux kernel - CVE-2024-44957

Vulnerability identifier: #VU96862

CSH Severity: Low

CVSS v4 BT: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-44957

CWE-ID: CWE-667

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the DEFINE_MUTEX(), irqfd_wakeup(), irqfd_poll_func(), privcmd_irqfd_assign(), privcmd_irqfd_deassign() and privcmd_irqfd_init() functions in drivers/xen/privcmd.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
Ubuntu
openEuler
python3-perf-debuginfo
kernel
bpftool
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-devel
kernel-headers
kernel-tools
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
python3-perf
kernel-source
linux-image-6.8.0-50-generic (Ubuntu package)
linux-image-6.8.0-50-generic-64k (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-generic-64k (Ubuntu package)
linux-image-generic-64k-hwe-24.04 (Ubuntu package)
linux-image-generic-hwe-24.04 (Ubuntu package)
linux-image-generic-lpae (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-virtual-hwe-24.04 (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-lowlatency-64k (Ubuntu package)
linux-image-lowlatency-64k-hwe-24.04 (Ubuntu package)
linux-image-6.8.0-50-lowlatency (Ubuntu package)
linux-image-6.8.0-50-lowlatency-64k (Ubuntu package)
linux-image-lowlatency-hwe-24.04 (Ubuntu package)
linux-image-lowlatency-hwe-22.04 (Ubuntu package)
linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package)
linux-image-generic-hwe-22.04 (Ubuntu package)
linux-image-generic-64k-hwe-22.04 (Ubuntu package)
linux-image-oem-22.04 (Ubuntu package)
linux-image-oem-22.04a (Ubuntu package)
linux-image-oem-22.04b (Ubuntu package)
linux-image-oem-22.04c (Ubuntu package)
linux-image-oem-22.04d (Ubuntu package)
linux-image-virtual-hwe-22.04 (Ubuntu package)
linux-image-gkeop (Ubuntu package)
linux-image-6.8.0-1002-gkeop (Ubuntu package)
linux-image-gkeop-6.8 (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-6.8.0-1015-gke (Ubuntu package)
linux-image-6.8.0-1016-raspi (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-ibm-classic (Ubuntu package)
linux-image-ibm (Ubuntu package)
linux-image-6.8.0-1017-ibm (Ubuntu package)
linux-image-ibm-lts-24.04 (Ubuntu package)
linux-image-6.8.0-1017-oracle (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-oracle-64k (Ubuntu package)
linux-image-6.8.0-1017-oracle-64k (Ubuntu package)
linux-image-oem-24.04 (Ubuntu package)
linux-image-oem-24.04a (Ubuntu package)
linux-image-6.8.0-1018-oem (Ubuntu package)
linux-image-6.8.0-1019-nvidia (Ubuntu package)
linux-image-nvidia-64k (Ubuntu package)
linux-image-nvidia (Ubuntu package)
linux-image-6.8.0-1019-gcp (Ubuntu package)
linux-image-6.8.0-1019-nvidia-64k (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-6.8.0-1019-nvidia-lowlatency (Ubuntu package)
linux-image-6.8.0-1019-nvidia-lowlatency-64k (Ubuntu package)
linux-image-nvidia-lowlatency (Ubuntu package)
linux-image-nvidia-lowlatency-64k (Ubuntu package)
linux-image-nvidia-hwe-22.04 (Ubuntu package)
linux-image-nvidia-6.8 (Ubuntu package)
linux-image-nvidia-64k-6.8 (Ubuntu package)
linux-image-nvidia-64k-hwe-22.04 (Ubuntu package)
linux-image-aws (Ubuntu package)
linux-image-6.8.0-1020-aws (Ubuntu package)
linux-image-azure-fde (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-6.8.0-1020-azure-fde (Ubuntu package)
linux-image-6.8.0-1020-azure (Ubuntu package)

Install update from vendor's website.

Linux kernel - addressed in versions 6.6.46, 6.10.5, 6.11
python3-perf-debuginfo - update to 6.6.0-76.0.0.69
kernel - update to 6.6.0-76.0.0.69
bpftool - update to 6.6.0-76.0.0.69
bpftool-debuginfo - update to 6.6.0-76.0.0.69
kernel-debuginfo - update to 6.6.0-76.0.0.69
kernel-debugsource - update to 6.6.0-76.0.0.69
kernel-devel - update to 6.6.0-76.0.0.69
kernel-headers - update to 6.6.0-76.0.0.69
kernel-tools - update to 6.6.0-76.0.0.69
kernel-tools-debuginfo - update to 6.6.0-76.0.0.69
kernel-tools-devel - update to 6.6.0-76.0.0.69
perf - update to 6.6.0-76.0.0.69
perf-debuginfo - update to 6.6.0-76.0.0.69
python3-perf - update to 6.6.0-76.0.0.69
kernel-source - update to 6.6.0-76.0.0.69
linux-image-6.8.0-50-generic (Ubuntu package) - addressed in versions 6.8.0-50.51, 6.8.0-50.51~22.04.1
linux-image-6.8.0-50-generic-64k (Ubuntu package) - addressed in versions 6.8.0-50.51, 6.8.0-50.51~22.04.1
linux-image-generic (Ubuntu package) - update to 6.8.0-50.51
linux-image-generic-64k (Ubuntu package) - update to 6.8.0-50.51
linux-image-generic-64k-hwe-24.04 (Ubuntu package) - update to 6.8.0-50.51
linux-image-generic-hwe-24.04 (Ubuntu package) - update to 6.8.0-50.51
linux-image-generic-lpae (Ubuntu package) - update to 6.8.0-50.51
linux-image-virtual (Ubuntu package) - update to 6.8.0-50.51
linux-image-virtual-hwe-24.04 (Ubuntu package) - update to 6.8.0-50.51
linux-image-kvm (Ubuntu package) - update to 6.8.0-50.51
linux-image-lowlatency (Ubuntu package) - update to 6.8.0-50.51.1
linux-image-lowlatency-64k (Ubuntu package) - update to 6.8.0-50.51.1
linux-image-lowlatency-64k-hwe-24.04 (Ubuntu package) - update to 6.8.0-50.51.1
linux-image-6.8.0-50-lowlatency (Ubuntu package) - addressed in versions 6.8.0-50.51.1, 6.8.0-50.51.1~22.04.1
linux-image-6.8.0-50-lowlatency-64k (Ubuntu package) - addressed in versions 6.8.0-50.51.1, 6.8.0-50.51.1~22.04.1
linux-image-lowlatency-hwe-24.04 (Ubuntu package) - update to 6.8.0-50.51.1
linux-image-lowlatency-hwe-22.04 (Ubuntu package) - update to 6.8.0-50.51.1~22.04.1
linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package) - update to 6.8.0-50.51.1~22.04.1
linux-image-generic-hwe-22.04 (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-generic-64k-hwe-22.04 (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-oem-22.04 (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-oem-22.04a (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-oem-22.04b (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-oem-22.04c (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-oem-22.04d (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-virtual-hwe-22.04 (Ubuntu package) - update to 6.8.0-50.51~22.04.1
linux-image-gkeop (Ubuntu package) - update to 6.8.0-1002.4
linux-image-6.8.0-1002-gkeop (Ubuntu package) - update to 6.8.0-1002.4
linux-image-gkeop-6.8 (Ubuntu package) - update to 6.8.0-1002.4
linux-image-gke (Ubuntu package) - update to 6.8.0-1015.19
linux-image-6.8.0-1015-gke (Ubuntu package) - update to 6.8.0-1015.19
linux-image-6.8.0-1016-raspi (Ubuntu package) - update to 6.8.0-1016.18
linux-image-raspi (Ubuntu package) - update to 6.8.0-1016.18
linux-image-ibm-classic (Ubuntu package) - update to 6.8.0-1017.17
linux-image-ibm (Ubuntu package) - update to 6.8.0-1017.17
linux-image-6.8.0-1017-ibm (Ubuntu package) - update to 6.8.0-1017.17
linux-image-ibm-lts-24.04 (Ubuntu package) - update to 6.8.0-1017.17
linux-image-6.8.0-1017-oracle (Ubuntu package) - addressed in versions 6.8.0-1017.18, 6.8.0-1017.18~22.04.1
linux-image-oracle (Ubuntu package) - addressed in versions 6.8.0-1017.18, 6.8.0-1017.18~22.04.1
linux-image-oracle-64k (Ubuntu package) - addressed in versions 6.8.0-1017.18, 6.8.0-1017.18~22.04.1
linux-image-6.8.0-1017-oracle-64k (Ubuntu package) - addressed in versions 6.8.0-1017.18, 6.8.0-1017.18~22.04.1
linux-image-oem-24.04 (Ubuntu package) - update to 6.8.0-1018.18
linux-image-oem-24.04a (Ubuntu package) - update to 6.8.0-1018.18
linux-image-6.8.0-1018-oem (Ubuntu package) - update to 6.8.0-1018.18
linux-image-6.8.0-1019-nvidia (Ubuntu package) - addressed in versions 6.8.0-1019.21, 6.8.0-1019.21~22.04.1
linux-image-nvidia-64k (Ubuntu package) - update to 6.8.0-1019.21
linux-image-nvidia (Ubuntu package) - update to 6.8.0-1019.21
linux-image-6.8.0-1019-gcp (Ubuntu package) - addressed in versions 6.8.0-1019.21, 6.8.0-1019.21~22.04.1
linux-image-6.8.0-1019-nvidia-64k (Ubuntu package) - addressed in versions 6.8.0-1019.21, 6.8.0-1019.21~22.04.1
linux-image-gcp (Ubuntu package) - addressed in versions 6.8.0-1019.21, 6.8.0-1019.21~22.04.1
linux-image-6.8.0-1019-nvidia-lowlatency (Ubuntu package) - update to 6.8.0-1019.21.1
linux-image-6.8.0-1019-nvidia-lowlatency-64k (Ubuntu package) - update to 6.8.0-1019.21.1
linux-image-nvidia-lowlatency (Ubuntu package) - update to 6.8.0-1019.21.1
linux-image-nvidia-lowlatency-64k (Ubuntu package) - update to 6.8.0-1019.21.1
linux-image-nvidia-hwe-22.04 (Ubuntu package) - update to 6.8.0-1019.21~22.04.1
linux-image-nvidia-6.8 (Ubuntu package) - update to 6.8.0-1019.21~22.04.1
linux-image-nvidia-64k-6.8 (Ubuntu package) - update to 6.8.0-1019.21~22.04.1
linux-image-nvidia-64k-hwe-22.04 (Ubuntu package) - update to 6.8.0-1019.21~22.04.1
linux-image-aws (Ubuntu package) - addressed in versions 6.8.0-1020.22, 6.8.0-1020.22~22.04.1
linux-image-6.8.0-1020-aws (Ubuntu package) - addressed in versions 6.8.0-1020.22, 6.8.0-1020.22~22.04.1
linux-image-azure-fde (Ubuntu package) - addressed in versions 6.8.0-1020.23, 6.8.0-1020.23~22.04.1
linux-image-azure (Ubuntu package) - addressed in versions 6.8.0-1020.23, 6.8.0-1020.23~22.04.1
linux-image-6.8.0-1020-azure-fde (Ubuntu package) - addressed in versions 6.8.0-1020.23, 6.8.0-1020.23~22.04.1
linux-image-6.8.0-1020-azure (Ubuntu package) - addressed in versions 6.8.0-1020.23, 6.8.0-1020.23~22.04.1

• https://git.kernel.org/stable/c/c2775ae4d9227729f8ca9ee2a068f62a00d5ea9c
• https://git.kernel.org/stable/c/49f2a5da6785b2dbde93e291cae037662440346e
• https://git.kernel.org/stable/c/1c682593096a487fd9aebc079a307ff7a6d054a3
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.5
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.46

• Improper locking in Linux kernel xen driver
• Ubuntu update for linux-gkeop
• Ubuntu update for linux-nvidia
• Ubuntu update for linux
• Ubuntu update for linux-hwe-6.8
• Ubuntu update for linux-azure
• openEuler 24.03 LTS update for kernel